State the Metric used to specify nonfunctional system properties.
Speed
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Processed transactions/second
User/event response time
Screen refresh time
|
Size
|
Mbytes
Number of ROM chips
|
Ease of use
|
Training time
Number of help frames
|
Reliability
|
Mean time to failure
Probability of unavailability
Rate of failure occurrence
Availability
|
Robustness
|
Time to restart after failure
Percentage of events causing failure
Probability of data corruption on failure
|
Portability
|
Percentage of target dependent statements
Number of target systems
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